If you call for help and tell them about killing yourself, the police will handcuff you, take you to an emergency room, and then you are going to wait in line in handcuffs. So, it is better to go there on your own. Either way, even when you go there without handcuffs, if they think you are a danger to yourself, they will involuntarily admit you. They will take all your belongings including shoes and phone, give you hospital gowns, and then make you stay in the hospital version of jail. Then you will have hours/days to stare at the ceiling and think about all the life choices that brought you to that moment. Just so you know.